Clark County began preliminary work to install 700 steel posts between the street and sidewalks along the Las Vegas Strip early Tuesday morning.
Workers dug under the sidewalk in front of the Mirage to locate existing underground utilities. The work was expected to take up to eight hours and be finished Tuesday.
County spokesman Dan Kulin said the impact on traffic “will be minimal.”
The traffic lane closest to the curb was closed, as well as portions of the sidewalk.
County staff has said the steel posts, known as bollards, are strong enough to stop a flatbed truck traveling 55 mph.
By the end of October the county should begin installing the bollards near the Hawaiian Marketplace on the east side of Las Vegas Boulevard South.
Work will continue at various locations along the Strip on weekdays from 1 to 11 a.m. The project should be completed before New Year’s Eve, Kulin said.